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#ifndef __LINUX_BOOT_PARAMS_H__
#define __LINUX_BOOT_PARAMS_H__
#include <asm/types.h>
#define E820MAX 32
struct mem_map {
int nr_map;
struct entry {
unsigned long long addr; /* start of memory segment */
unsigned long long size; /* size of memory segment */
unsigned long type; /* type of memory segment */
#define E820_RAM 1
#define E820_RESERVED 2
#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */
#define E820_NVS 4
#define E820_IO 16
#define E820_SHARED 17
unsigned long caching_attr; /* used by hypervisor */
#define MEMMAP_UC 0
#define MEMMAP_WC 1
#define MEMMAP_WT 4
#define MEMMAP_WP 5
#define MEMMAP_WB 6
}map[E820MAX];
};
struct e820entry {
unsigned long long addr; /* start of memory segment */
unsigned long long size; /* size of memory segment */
unsigned long type; /* type of memory segment */
};
struct e820map {
int nr_map;
struct e820entry map[E820MAX];
};
struct drive_info_struct { __u8 dummy[32]; };
struct sys_desc_table {
__u16 length;
__u8 table[318];
};
struct screen_info {
unsigned char orig_x; /* 0x00 */
unsigned char orig_y; /* 0x01 */
unsigned short dontuse1; /* 0x02 -- EXT_MEM_K sits here */
unsigned short orig_video_page; /* 0x04 */
unsigned char orig_video_mode; /* 0x06 */
unsigned char orig_video_cols; /* 0x07 */
unsigned short unused2; /* 0x08 */
unsigned short orig_video_ega_bx; /* 0x0a */
unsigned short unused3; /* 0x0c */
unsigned char orig_video_lines; /* 0x0e */
unsigned char orig_video_isVGA; /* 0x0f */
unsigned short orig_video_points; /* 0x10 */
/* VESA graphic mode -- linear frame buffer */
unsigned short lfb_width; /* 0x12 */
unsigned short lfb_height; /* 0x14 */
unsigned short lfb_depth; /* 0x16 */
unsigned long lfb_base; /* 0x18 */
unsigned long lfb_size; /* 0x1c */
unsigned short dontuse2, dontuse3; /* 0x20 -- CL_MAGIC and CL_OFFSET here */
unsigned short lfb_linelength; /* 0x24 */
unsigned char red_size; /* 0x26 */
unsigned char red_pos; /* 0x27 */
unsigned char green_size; /* 0x28 */
unsigned char green_pos; /* 0x29 */
unsigned char blue_size; /* 0x2a */
unsigned char blue_pos; /* 0x2b */
unsigned char rsvd_size; /* 0x2c */
unsigned char rsvd_pos; /* 0x2d */
unsigned short vesapm_seg; /* 0x2e */
unsigned short vesapm_off; /* 0x30 */
unsigned short pages; /* 0x32 */
/* 0x34 -- 0x3f reserved for future expansion */
};
struct screen_info_overlap {
__u8 reserved1[2]; /* 0x00 */
__u16 ext_mem_k; /* 0x02 */
__u8 reserved2[0x20 - 0x04]; /* 0x04 */
__u16 cl_magic; /* 0x20 */
#define CL_MAGIC_VALUE 0xA33F
__u16 cl_offset; /* 0x22 */
__u8 reserved3[0x40 - 0x24]; /* 0x24 */
};
struct apm_bios_info {
__u16 version;
__u16 cseg;
__u32 offset;
__u16 cseg_16;
__u16 dseg;
__u16 flags;
__u16 cseg_len;
__u16 cseg_16_len;
__u16 dseg_len;
};
struct linux_boot_params {
union { /* 0x00 */
struct screen_info info;
struct screen_info_overlap overlap;
} screen;
struct apm_bios_info apm_bios_info; /* 0x40 */
__u8 reserved4[0x80 - 0x54]; /* 0x54 */
struct drive_info_struct drive_info; /* 0x80 */
struct sys_desc_table sys_desc_table; /* 0xa0 */
__u32 alt_mem_k; /* 0x1e0 */
__u8 reserved5[4]; /* 0x1e4 */
__u8 e820_map_nr; /* 0x1e8 */
__u8 reserved6[8]; /* 0x1e9 */
__u8 setup_sects; /* 0x1f1 */
__u16 mount_root_rdonly; /* 0x1f2 */
__u16 syssize; /* 0x1f4 */
__u16 swapdev; /* 0x1f6 */
__u16 ramdisk_flags; /* 0x1f8 */
#define RAMDISK_IMAGE_START_MASK 0x07FF
#define RAMDISK_PROMPT_FLAG 0x8000
#define RAMDISK_LOAD_FLAG 0x4000
__u16 vid_mode; /* 0x1fa */
__u16 root_dev; /* 0x1fc */
__u8 reserved9[1]; /* 0x1fe */
__u8 aux_device_info; /* 0x1ff */
/* 2.00+ */
__u8 reserved10[2]; /* 0x200 */
__u8 header_magic[4]; /* 0x202 */
__u16 protocol_version; /* 0x206 */
__u8 reserved11[8]; /* 0x208 */
__u8 loader_type; /* 0x210 */
#define LOADER_TYPE_LOADLIN 1
#define LOADER_TYPE_BOOTSECT_LOADER 2
#define LOADER_TYPE_SYSLINUX 3
#define LOADER_TYPE_ETHERBOOT 4
#define LOADER_TYPE_UNKNOWN 0xFF
__u8 loader_flags; /* 0x211 */
__u8 reserved12[2]; /* 0x212 */
__u32 code32_start; /* 0x214 */
__u32 initrd_start; /* 0x218 */
__u32 initrd_size; /* 0x21c */
__u8 reserved13[4]; /* 0x220 */
/* 2.01+ */
__u16 heap_end_ptr; /* 0x224 */
__u8 reserved14[2]; /* 0x226 */
/* 2.02+ */
__u32 cmd_line_ptr; /* 0x228 */
/* 2.03+ */
__u32 ramdisk_max; /* 0x22c */
__u8 reserved15[0x2d0 - 0x230]; /* 0x230 */
struct e820entry e820_map[E820MAX]; /* 0x2d0 */
__u64 shared_info; /* 0x550 */
__u8 padding[0x800 - 0x558]; /* 0x558 */
__u8 cmd_line[0x800]; /* 0x800 */
} __attribute__((packed));
#endif /* __LINUX_BOOT_PARAMS_H__ */
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